Yusaku Fujiki

Yusaku Fujiki's powers and abilities

Yusaku is an intelligent hacker who possesses considerable ability and who solves mysteries in a cool manner. Cool-headed and extremely clever, Yusaku's real skill is in his hacking and cracking abilities. He was able to hack into SOL Technologies' systems to find Ai, which both SOL and the Knights of Hanoi had been hunting, within a few minutes and in the middle of a security scan, and managed to capture it into his Duel Disk while leaving the AI with no means to escape. He has been fighting the Knights of Hanoi for some time without leaving any trace of his actions as "Playmaker", and keeps a dummy deck to mislead others when in public. Yusaku combines his high intellect with his hacking abilities to quickly come up with plans and think on his feet.

An observant individual, he is very good at reading people and perceptive about circumstances. When dueling, Yusaku keeps a close eye on his opponent's body language and expressions to know when they're planning something, and as such, he usually isn't surprised when something unexpected happens. This is seen when he saw right through Windy's facade and deduced him as the one who removed the lock program connecting [Ai to his Duel Disk. He is also perceptive of his surroundings, as when he learns that the quiz in the dungeon is really a map of Den City.

Yusaku's Skill in dueling is "Storm Access" which allows him to randomly produce and add to his Extra Deck a never-before-seen Link Monster from a Data Storm when his LP are at least 1000, at the cost of having to venture into the Data Storm (it would also appear that the more he uses this Skill, the easier it becomes as originally, he greatly struggled to even enter the Data Storm but eventually, he could steadily reach into it to obtain his new card. The cards obtained using this ability can then be converted into physical cards outside of LINK VRAINS using appropriate technology. As noted by Ghost Gal, "Storm Access" is a unique skill that not just any Duelist can use. Later, Yusaku and Ai developed an upgraded version of this Skill called "Neo Storm Access", which allows him to add any kind of monster to his Extra Deck, rather than just Link Monsters. The programming of his skill appears able to advanced enough for Yusaku to access even outside of a Speed Duel, as he could perform it without moving via a D-Board. At the same time, he teleport back to his D-Board should he fall off from it, though he would first need to stop his fall.

Yusaku displays a strange ability to sense and see things in the network world when not logged in called Link Sense. Yusaku has had this ability since a young age, assumingly since the Lost Incident. Through Link Sense, he can discern a Knight of Hanoi's presence through their cards, which allowed him to immediately determine that Gore was not a Knight of Hanoi and know when Blue Angel had drawn the card that was affected by Hanoi's influence. He can hear and feel the pulse of his Cyberse Monsters and locate Ai in the network. It is revealed that he gained this power from Ai during the incident.